A Developmental Study of the Relationship Between Geometry and Kinematics in Drawing Movements

  • Viviani P
  • Schneider R
  • 90

    Readers

    Mendeley users who have this article in their library.
  • 166

    Citations

    Citations of this article.

Abstract

Trajectory and kinematics of drawing movements are mutually constrained by functional relationships that reduce the degrees of freedom of the hand-arm system. Previous investigations of these relationships are extended here by considering their development in children between 5 and 12 years of age. Performances in a simple motor task--the continuous tracing of elliptic trajectories--demonstrate that both the phenomenon of isochrony (increase of the average movement velocity with the linear extent of the trajectory) and the so-called two-thirds power law (relation between tangential velocity and curvature) are qualitatively present already at the age of 5. The quantitative aspects of these regularities evolve with age, however, and steady-state adult performance is not attained even by the oldest children. The power-law formalism developed in previous reports is generalized to encompass these developmental aspects of the control of movement.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Paolo Viviani

  • Roland Schneider

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free